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<h1 class="topictitle1">Step 7: Performing Backup</h1>
<div><p>Before performing backup, you need to associate the resources to be protected with a specified SLA policy. The system protects the resources based on the SLA policy and periodically performs backup jobs based on the SLA policy. You can perform a backup job immediately through manual backup.</p>
<div class="section"><h4 class="sectiontitle">Precautions</h4><ul><li>During manual backup, the parameters (except <span class="uicontrol"><b><span><strong>Automatic Retry</strong></span></b></span>) defined in the SLA, such as <span class="uicontrol"><b><span><strong>Channels</strong></span></b></span>, <span class="uicontrol"><b><span><strong>Rate Limiting Policies</strong></span></b></span>, and <span class="uicontrol"><b><span><strong>Transmission and Data Encryption</strong></span></b></span>, are applied to the manual backup job.</li><li>Copies generated by manual backup are retained for the duration defined in the SLA.</li><li>If a replication or archive policy has been defined in the SLA, the <span>OceanProtect Appliance</span> will perform replication or archiving once based on the SLA when you perform manual backup.</li><li>If no log backup is defined in the SLA, log backup cannot be manually executed.</li></ul>
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<div class="section"><h4 class="sectiontitle">Procedure</h4><ol><li><span>Choose <span class="uicontrol" id="dameng-00018__en-us_topic_0000001666345505_uicontrol184094357368"><b><span id="dameng-00018__en-us_topic_0000001666345505_text54096353367"><strong>Protection</strong></span> &gt; Databases &gt; Dameng</b></span>.</span></li><li><span>On the <span class="uicontrol"><b>Databases</b></span> tab page, select the database to be protected and click <span class="uicontrol"><b><span><strong>Protect</strong></span></b></span>. </span><p><p>You can also select multiple databases for batch protection.</p>
</p></li><li><span>Select an SLA. </span><p><p>You can also click <span class="uicontrol"><b><span><strong>Create</strong></span></b></span> to create an SLA.</p>
<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="dameng-00018__en-us_topic_0000001964713008_p125947145711"><span id="dameng-00018__en-us_topic_0000001964713008_ph1413818422327">If a WORM policy has been configured for the resources to be protected, select an SLA without a WORM policy to avoid WORM policy conflicts.</span></p>
</div></div>
</p></li><li><span>Set advanced parameters for the backup policy. </span><p><div class="p"><a href="#dameng-00018__table37831632073">Table 1</a> describes the related parameters.
<div class="tablenoborder"><a name="dameng-00018__table37831632073"></a><a name="table37831632073"></a><table cellpadding="4" cellspacing="0" summary="" id="dameng-00018__table37831632073" frame="border" border="1" rules="all"><caption><b>Table 1 </b>Advanced parameters for database backup</caption><colgroup><col style="width:23.400000000000002%"><col style="width:76.6%"></colgroup><thead align="left"><tr id="dameng-00018__dameng-00017_row16900142743220"><th align="left" class="cellrowborder" valign="top" width="23.400000000000002%" id="mcps1.3.3.2.4.2.1.2.2.3.1.1"><p id="dameng-00018__dameng-00017_p10900527123212">Parameter</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="76.6%" id="mcps1.3.3.2.4.2.1.2.2.3.1.2"><p id="dameng-00018__dameng-00017_p9900142710323">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="dameng-00018__dameng-00017_row5473184415480"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><p id="dameng-00018__dameng-00017_p24732444489"><strong id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_b203081655125718">Specify Target Location</strong></p>
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<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><div class="p" id="dameng-00018__dameng-00017_p1473184413481">Specify the target storage location of backup copies.<ul id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_ul3832679403"><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li299019528162"><span class="parmvalue" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_parmvalue20580546155113"><b>Backup Storage Units</b></span>: A backup storage unit corresponds to a backup cluster node. After a backup storage unit is selected, copies are stored to the storage unit. If the capacity of the storage unit is insufficient, the backup job will fail.<p id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_p36749546164">For details about how to create a backup storage unit, see "Managing Backup Storage Units" in the <i><cite id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_cite35358248206">OceanProtect DataBackup 1.5.0-1.6.0 Cluster HA Feature Guide</cite></i>.</p>
</li><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li168151656101610"><span class="parmvalue" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_parmvalue142224995111"><b>Backup Storage Unit Groups</b></span>: A backup storage unit group is a collection of backup storage units. After a backup storage unit group is selected, the system automatically selects a target backup storage unit based on the storage policy of the storage unit group.<p id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_p15126135815168">For details about how to create a backup storage unit group, see "(Optional) Creating Backup Storage Unit Groups" in the <i><cite id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_cite961778916">OceanProtect DataBackup 1.5.0-1.6.0 Cluster HA Feature Guide</cite></i>.</p>
</li></ul>
<div class="note" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_note06533915171"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_ul2261104811172"><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li182618487176">For 1.5.0, this parameter is displayed only when you have deployed the cluster HA feature. You can leave the target location unspecified. If you do not specify the target location, the system automatically selects the target storage unit through intelligent balancing.</li><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li1025484315189">For 1.6.0 and later versions, you must specify the target location.</li></ul>
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<tr id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_row17362157141019"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p1836247121019"><span id="dameng-00018__dameng-00017_text58237710332"><strong>Rate Limiting Policies</strong></span></p>
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<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p1136213711102">Average maximum amount of data that can be transmitted per second in a backup job.</p>
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<tr id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_row147671631106"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p1376814311108"><span id="dameng-00018__dameng-00017_text139801222163316"><strong>Concurrent Jobs</strong></span></p>
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<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p19768123201020">Number of backup jobs that can be executed simultaneously.</p>
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<tr id="dameng-00018__dameng-00017_row350283773215"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p62997228100"><span id="dameng-00018__dameng-00017_text1214104153311"><strong>Source Deduplication</strong></span></p>
<div class="note" id="dameng-00018__dameng-00017_note751518721915"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_p164111271351">Only OceanProtect X series backup appliances and OceanProtect E1000 (with the OceanProtect used as backup storage) support this parameter.</p>
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<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><div class="p" id="dameng-00018__dameng-00017_p167492039172015">After this function is enabled, the amount of data to be transmitted can be reduced, but more client resources will be occupied.<div class="note" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_note8885112682911"><span class="notetitle"> NOTE: </span><div class="notebody"><ul id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_ul5885426132914"><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li10885172616299">An agent host can only be linked with one storage unit. To enable source deduplication, select <span class="parmvalue" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_parmvalue13417617181719"><b>Backup Storage Unit</b></span> for <span class="parmname" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_parmname164341313131719"><b>Specify Target Location</b></span>. Otherwise, a storage unit that is not linked with the agent host may be selected through intelligent balancing. As a result, source deduplication fails to be enabled. If different protected objects are associated with different SLAs, where different backup storage units are specified, select different agent hosts for the protected objects. Otherwise, source deduplication of some backup jobs will fail to be enabled.</li><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li9885182662911">If an agent host has been linked with a storage unit but is not performing a backup job with source deduplication, you can run the <strong id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_b1734071915190">dataturbo delete storage_object storage_name=</strong><em id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_i18291255102216">?</em> command on the agent host to delete the source deduplication link with the storage unit. The value of <strong id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_b9927131312572">storage_name</strong> in the command can be queried by running the <strong id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_b11782052162315">dataturbo show storage_object</strong> command. This way, when the agent host performs a backup job with source deduplication, the link between the agent host and a new storage unit can be established.</li><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li11885142615297">Visit <a href="https://info.support.huawei.com/storage/comp/#/oceanprotect" target="_blank" rel="noopener noreferrer">OceanProtect Compatibility Query</a> to check whether source deduplication is supported by the host OS. If not supported, source deduplication will not take effect after being configured.</li><li id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_li7883549153219">If a built-in agent (that is, ProtectAgent is co-deployed with the <span id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_text13835155817114">OceanProtect</span>) is used for backup, source deduplication does not take effect after being configured.</li></ul>
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<tr id="dameng-00018__dameng-00017_row142811853201614"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><div class="p" id="dameng-00018__dameng-00017_p1835141211302"><strong id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_b693713423122">Job Timeout Alarm</strong><div class="note" id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_note379352823112"><span class="notetitle"> NOTE: </span><div class="notebody"><p id="dameng-00018__dameng-00017_en-us_topic_0000001839143189_en-us_topic_0000001839143213_p8320153562113">This parameter is available only in 1.6.0 and later versions.</p>
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</td>
<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><p id="dameng-00018__dameng-00017_p8670441193214">After this function is enabled, an alarm is sent if the job execution time exceeds the time window. The alarm needs to be manually cleared.</p>
</td>
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<tr id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_row14299142215109"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p82998225105"><span id="dameng-00018__dameng-00017_text176431557173312"><strong>Job Failure Alarm</strong></span></p>
</td>
<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p5808102174919">After this function is enabled, an alarm is sent when a job fails. The alarm is automatically cleared when the next job is successful.</p>
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<tr id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_row1229932251011"><td class="cellrowborder" valign="top" width="23.400000000000002%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.1 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p113001622141014"><span id="dameng-00018__dameng-00017_text10591171803410"><strong>Automatic Retry</strong></span></p>
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<td class="cellrowborder" valign="top" width="76.6%" headers="mcps1.3.3.2.4.2.1.2.2.3.1.2 "><p id="dameng-00018__dameng-00017_en-us_topic_0000001337937626_en-us_topic_0000001381423269_en-us_topic_0000001406132877_en-us_topic_0000001355773052_en-us_topic_0000001337937626_en-us_topic_0000001381423269_p69201030194919">After this function is enabled, the system automatically retries a failed job based on the number of retries and time preset.</p>
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</p></li><li><span>Click <span class="uicontrol" id="dameng-00018__en-us_topic_0000001964713008_uicontrol23691650677"><b>OK</b></span>.</span><p><p id="dameng-00018__en-us_topic_0000001964713008_en-us_topic_0000001656691397_p25041111535">If the current system time is later than the start time of the first backup specified in the SLA, you can select <strong id="dameng-00018__en-us_topic_0000001964713008_b9624185216713">Execute manual backup now</strong> in the dialog box that is displayed or choose to perform automatic backup periodically based on the backup policy set in the SLA.</p>
</p></li><li><strong>Optional: </strong><span>Perform manual backup.</span><p><p>If you want to execute a backup job immediately, perform manual backup through the following operations. Otherwise, skip this step.</p>
<ol type="a"><li>In the row that contains the database to be backed up, choose <span class="uicontrol" id="dameng-00018__en-us_topic_0000001792503838_uicontrol58631047392"><b><span id="dameng-00018__en-us_topic_0000001792503838_text1648763311257"><strong>More</strong></span> &gt; <span id="dameng-00018__en-us_topic_0000001792503838_text109939110248"><strong>Manual Backup</strong></span></b></span>.<div class="note" id="dameng-00018__en-us_topic_0000001792503838_note187025312547"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="dameng-00018__en-us_topic_0000001792503838_p870125314544">You can select multiple resources to perform manual backup in batches. Select multiple resources and choose <span class="uicontrol" id="dameng-00018__en-us_topic_0000001792503838_uicontrol14182155715711"><b><span id="dameng-00018__en-us_topic_0000001792503838_text662114113158"><strong>More</strong></span> &gt; <span id="dameng-00018__en-us_topic_0000001792503838_text1068159191519"><strong>Manual Backup</strong></span></b></span> in the upper left corner of the page.</p>
</div></div>
</li><li>Set the name of the copy generated during manual backup.<p>If this parameter is left unspecified, the system sets the name to <strong>backup_</strong><em>Timestamp</em> by default.</p>
</li><li>Select a protection policy, which can be <strong><span><strong>Full backup</strong></span></strong>, <strong><span><strong>Incremental backup</strong></span></strong>, <strong><span><strong>Differential Backup</strong></span></strong>, or <strong><span><strong>Log Backup</strong></span></strong>.<div class="note"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><ul><li><span>The Dameng cluster does not support log backup</span>.</li><li><span>For 1.6.0 and later versions, if the selected protection policy is different from that configured in the associated SLA, the WORM configuration does not take effect.</span></li></ul>
</div></div>
</li><li>Click <span class="uicontrol"><b>OK</b></span>.</li></ol>
</p></li></ol>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dameng-00011.html">Backing Up Dameng</a></div>
</div>
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